while loop

public class MainActivity extends AppCompatActivity {

    TextView textview;
    Button button;
    EditText edittext;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textview = findViewById(R.id.textview);
        button = findViewById(R.id.button);
        edittext = findViewById(R.id.edittext);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                int i =0;
                while (i<=5){
                    i++;
                    textview.append(i+"   Bangladesh\n");
                }

                int x =2;
                while (x<=11){
                    x=x+2;
                    textview.append(x+"\n");
                }


            }
        });

    }
}